CVE-2020-25828
Published: 27 September 2020
An issue was discovered in MediaWiki before 1.31.10 and 1.32.x through 1.34.x before 1.34.4. The non-jqueryMsg version of mw.message().parse() doesn't escape HTML. This affects both message contents (which are generally safe) and the parameters (which can be based on user input). (When jqueryMsg is loaded, it correctly accepts only whitelisted tags in message contents, and escapes all parameters. Situations with an unloaded jqueryMsg are rare in practice, but can for example occur for Special:SpecialPages on a wiki with no extensions installed.)
Priority
Status
Package | Release | Status |
---|---|---|
mediawiki Launchpad, Ubuntu, Debian |
bionic |
Needs triage
|
focal |
Needs triage
|
|
groovy |
Not vulnerable
(1:1.35.0-1)
|
|
hirsute |
Not vulnerable
(1:1.35.0-1)
|
|
impish |
Not vulnerable
(1:1.35.0-1)
|
|
jammy |
Not vulnerable
(1:1.35.0-1)
|
|
kinetic |
Not vulnerable
(1:1.35.0-1)
|
|
lunar |
Not vulnerable
(1:1.35.0-1)
|
|
mantic |
Not vulnerable
(1:1.35.0-1)
|
|
noble |
Not vulnerable
(1:1.35.0-1)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(1:1.35.0-1)
|
|
xenial |
Does not exist
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 6.1 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | Required |
Scope | Changed |
Confidentiality | Low |
Integrity impact | Low |
Availability impact | None |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
References
- https://lists.wikimedia.org/pipermail/wikitech-l/2020-September/093888.html
- https://phabricator.wikimedia.org/T115888
- https://lists.wikimedia.org/pipermail/mediawiki-announce
- https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048480.html
- https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048488.html
- https://www.cve.org/CVERecord?id=CVE-2020-25828
- NVD
- Launchpad
- Debian